Vinca Cora and Nirvana Series
Catharanthus roseus
Cora and Nirvana Vinca (commonly referred to as periwinkle)
are the first varieties of this species to be resistant to the aerial Phytophthora fungus,
a devastating disease that until now limited use of this species in Texas
landscapes. In addition, they are heat and humidity tolerant
and deer resistant. They are available in a wide array of colors with
either upright or trailing habits and flower throughout the summer with some
of the largest flowers in the genus.
Exposure: Full sun, but will tolerate semi-shade
Height: 14 to 18 inches
Plant Type: annual
Planting Time: late spring to summer
Soil Type: adaptable to most soils
Suggested uses: bedding, containers, hanging baskets (trailing types), window
boxes
Special notes: The best time to plant vinca is after the soil has thoroughly
warmed in late spring or early summer. It does best in hot weather. It
is drought tolerant, but does best with good soil drainage and regular water
and fertilization at moderate levels.
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